Question

Gross income for each of the past 5 years of a company. This would be ratio because it has a true zero

Answer 1

ratio level

Answer 2

I'd say it's a list of values.

Answer 3

my options are nominal, ordinal, interval or ratio. So ordinal maybe?

Answer 4

It is not a ratio.
I would say gross income is an ordinal. It is measured in dollars.
I think of "ordinal" as counting discrete objects: cows, dollars, people....
I think of "interval" as "measurements" of a continuous value: things that can change by any amount: length of a line, area, temperature (notice these things are not like cows. You have a cow or not. A line can be any length.)

Answer 5

Ah. That makes more sense. Thank you!

Answer 6

or maybe this helps. you can measure a length in inches, but you can get fractions of an inch. so think, continuous interval.
on the other hand, you do not measure fractions of a cow. so think ordinal.

for gross income, measured in dollars we assume the dollars are not divided into finer units. Either you have a dollar or you don't. so, ordinal

ratio would be earnings per share